Question

Identify the correct statement:

1. Female of many birds has a pair of dissimilar ZW chromosomes, while the males possess a pair of similar ZZ chromosomes.
2. Female of many birds has a pair of similar ZZ chromosomes, while the males possess a pair of dissimilar ZW chromosomes.

Answer 1

The correct statement is (a): Female birds have a pair of dissimilar ZW chromosomes, while males have a pair of similar ZZ chromosomes. This is because in birds, the female is heterogametic (ZW), and the male is homogametic (ZZ).